CN109521428A - A kind of dynamic lane width gate method effectively reducing blind monitoring system rate of failing to report - Google Patents
A kind of dynamic lane width gate method effectively reducing blind monitoring system rate of failing to report Download PDFInfo
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- CN109521428A CN109521428A CN201811513461.3A CN201811513461A CN109521428A CN 109521428 A CN109521428 A CN 109521428A CN 201811513461 A CN201811513461 A CN 201811513461A CN 109521428 A CN109521428 A CN 109521428A
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- report
- failing
- lane width
- monitoring system
- effectively reducing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
Abstract
A kind of dynamic lane width gate method effectively reducing blind monitoring system rate of failing to report, it includes: providing this vehicle speed and radar coverage thresholding of current vehicle, its further include: read described vehicle speed and when described vehicle speed is higher than certain phase value, certain adjusted value is increased to the radar coverage thresholding set in system algorithm, and then increases radar to the lateral distance range of target vehicle detection and acquire Targets Dots, dynamic lane width thresholding is arranged according to the different working environment of system in it, dynamically to adjust the lateral distance range of radar monitoring.
Description
Technical field
The present invention is about a kind of dynamic lane width gate method for effectively reducing blind monitoring system rate of failing to report.
Background technique
Blind monitoring system is to realize that function, working principle are by being mounted on the millimetre-wave radar of rear of vehicle,
A constant horizontal detection range is arranged in system, the lateral distance as moving target in identification vehicle side rear adjacent lane
Benchmark, when monitor this vehicle rear within the scope of this lateral distance have meet alert if moving object (automobile, motorcycle,
Bicycle etc.), system alarm prompts to avoid causing because of lane change there are moving object in the adjacent lane of driver vehicle side rear
Traffic accident.The lane width of expressway is wider than the lane in conventional section, adjacent when side traveling of this vehicle in this lane
In lane target vehicle lane away from this vehicle farther out the other side when driving, if this vehicle leans on left side in this lane, in right-hand lane
Target vehicle in lane on the right side, at this time the lateral distance of Ben Che and target vehicle will be greater than system setting horizontal detection
Range, blind monitoring system will determine target in interval lane, although adjacent lane is caused to have, to carry out vehicle close, and system is but not
Situation is failed to report in alarm, increases the probability that accident occurs.
Existing this vehicle of solution and target carriage adjacent two lanes phase distal side when driving, blind monitoring system is according to a perseverance
Fixed lane width thresholding (i.e. horizontal detection range), identification target vehicle not yet in effect and the method for issuing warning note are to increase
The lane width thresholding of big systems constant, but the lane width thresholding for increasing system merely will increase the rate of false alarm of system, i.e.,
It is to cause unnecessary false alarm in adjacent lane that system, which will accidentally be spaced the vehicle identification in lane,.
Summary of the invention
The object of the present invention is to provide a kind of dynamic lane width thresholding sides for effectively reducing blind monitoring system rate of failing to report
Method, to solve since different roads width are different, especially highway lane is relatively wide, in addition blind monitoring radar
There is certain range error, for target carriage in adjacent lane outer, the constant road for being unsatisfactory for this vehicle blind monitoring default is wide
It spends in threshold range, system occurs certain failing to report problem.
To realize the above-mentioned technical purpose, the present invention provides a kind of dynamic lane for effectively reducing blind monitoring system rate of failing to report
Width threshold method comprising: this vehicle speed and radar coverage thresholding of current vehicle are provided, further include: read institute
State this vehicle speed and when described vehicle speed be higher than certain phase value when, to the radar coverage set in system algorithm
Thresholding increases certain adjusted value, and then increases radar to the lateral distance range of target vehicle detection and acquire Targets Dots.
As a further improvement, further include: when reaching alarm frame there are single frames in the acquisition Targets Dots, increase
Add road width value, expand the radar coverage threshold value, to enhance the continuity for finding the target vehicle, goes forward side by side one
Step confirms the accuracy of the target vehicle；
As a further improvement, further include: when the alarm frame is through adding up and reaching alert if, the radar
Alarm.
As a further improvement, when reaching alarm frame without single frames in the acquisition Targets Dots, continue described in reading
This vehicle speed.
As a further improvement, when the alarm frame is through accumulative and not up to alert if, continue to read described
Vehicle speed.
As a further improvement, further include: remove static or jamming target in the acquisition Targets Dots.
The present invention passes through the working environment different according to system, such as lane line width, this vehicle speed, system setting dynamic
Lane width thresholding, dynamically to adjust the lateral distance range of radar monitoring, and then feelings that may be failed to report in system
Expand vehicle width thresholding under shape, increases radar to the lateral distance range of target vehicle, reduce the rate of failing to report of system, and not
Can be because constant lane width thresholding be arranged, it is in adjacent lane that system, which will accidentally be spaced the vehicle identification in lane, and causing need not
The false alarm wanted, caused rate of false alarm increase, the performance of effective blind monitoring system.
Detailed description of the invention
Fig. 1 the method for the present invention flow chart.
Specific embodiment
As shown in Figure 1, the present invention provides a kind of dynamic lane width thresholding for effectively reducing blind monitoring system rate of failing to report
Method comprising: this vehicle speed and radar coverage thresholding of current vehicle are provided, further include: read the Ben Cheche
Speed and the radar coverage thresholding increase when described vehicle speed is higher than certain phase value, to being set in system algorithm
Certain adjusted value, and then increase radar to the lateral distance range of target vehicle detection and acquire Targets Dots.
As a further improvement, further include: when reaching alarm frame there are single frames in the acquisition Targets Dots, increase
Add road width value, expand the radar coverage threshold value, to enhance the continuity for finding the target vehicle, goes forward side by side one
Step confirms the accuracy of the target vehicle；
As a further improvement, further include: when the alarm frame is through adding up and reaching alert if, the radar
Alarm.
As a further improvement, when reaching alarm frame without single frames in the acquisition Targets Dots, continue described in reading
This vehicle speed.
As a further improvement, when the alarm frame is through accumulative and not up to alert if, continue to read described
Vehicle speed.
As a further improvement, further include: remove static or jamming target in the acquisition Targets Dots.
The present invention passes through the working environment different according to system, such as lane line width, this vehicle speed, system setting dynamic
Lane width thresholding, dynamically to adjust the lateral distance range of radar monitoring, and then feelings that may be failed to report in system
Expand vehicle width thresholding under shape, increases radar to the lateral distance range of target vehicle, reduce the rate of failing to report of system, and not
Can be because constant lane width thresholding be arranged, it is in adjacent lane that system, which will accidentally be spaced the vehicle identification in lane, and causing need not
The false alarm wanted, caused rate of false alarm increase, the performance of effective blind monitoring system.
The technical solution of the invention patent: the original lane width threshold of setting blind monitoring system is D0, define t moment
Speed is St, target single frames alarm condition is Pt, radar alarm condition is Rt；(t+1) moment speed is St+1, the alarm of target single frames
State is Pt+1, radar alarm condition is Rt+1；(t+n) moment speed is St+n, target single frames alarm condition is Pt+n, radar alarm
State is Rt+n。
Such as when speed is higher than certain phase value, the lane width thresholding set in system algorithm is increased centainly at this time
Adjusted value, to increase Methods for Target Detection Probability；When there is the alarm frame for the condition that meets in target, it is believed that may there is target to go out
It is existing, increase road width value, the continuity of enhancing discovery target further confirms that the accuracy of target.
Lane width thresholding adjustment amount △ L=f (St,Pt,Rt), t moment lane width thresholding is Dt=D0+ △ L increases thunder
Up to the range of processing target, enhancing finds a possibility that being in target on the outside of adjacent lane line, considerably reduces the leakage of system
Report rate.
It should be appreciated that invention which is intended to be protected is not limited to non-limiting embodiments, it should be understood that non-limiting embodiment party
Case is illustrated as just example.The protection scope of the desired essence of the application is more embodied in independent claims offer
Range and its dependent claims.
Claims (6)
1. a kind of dynamic lane width gate method for effectively reducing blind monitoring system rate of failing to report comprising: front truck is worked as in offer
This vehicle speed and radar coverage thresholding, it is characterised in that: its further include: read described vehicle speed and work as described
When vehicle speed is higher than certain phase value, certain adjustment is increased to the radar coverage thresholding set in system algorithm
Value, and then increase radar to the lateral distance range of target vehicle detection and acquire Targets Dots.
2. a kind of dynamic lane width gate method for effectively reducing blind monitoring system rate of failing to report as described in claim 1,
It is characterized by: its further include: when reaching alarm frame there are single frames in the acquisition Targets Dots, increase road width value,
Expand the radar coverage threshold value, to enhance the continuity for finding the target vehicle, and further confirms that the mesh
Mark the accuracy of vehicle.
3. a kind of dynamic lane width gate method for effectively reducing blind monitoring system rate of failing to report as claimed in claim 2,
It is characterized by: its further include: when the alarm frame is through adding up and reaching alert if, the radar alarm.
4. a kind of dynamic lane width gate method for effectively reducing blind monitoring system rate of failing to report as claimed in claim 2,
It is characterized by: continuing to read described vehicle speed when reaching alarm frame without single frames in the acquisition Targets Dots.
5. a kind of dynamic lane width gate method for effectively reducing blind monitoring system rate of failing to report as claimed in claim 3,
It is characterized by: continuing to read described vehicle speed when the alarm frame is through accumulative and not up to alert if.
6. a kind of dynamic lane width gate method for effectively reducing blind monitoring system rate of failing to report as described in claim 1,
It is characterized by: its further include: static or jamming target is removed in the acquisition Targets Dots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513461.3A CN109521428B (en) | 2018-12-11 | 2018-12-11 | Dynamic lane width threshold method for effectively reducing missing report rate of blind spot monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811513461.3A CN109521428B (en) | 2018-12-11 | 2018-12-11 | Dynamic lane width threshold method for effectively reducing missing report rate of blind spot monitoring system |
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| CN109521428A true CN109521428A (en) | 2019-03-26 |
| CN109521428B CN109521428B (en) | 2021-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110466453A (en) * | 2019-08-28 | 2019-11-19 | 安徽江淮汽车集团股份有限公司 | Blind monitoring system lane width thresholding value adjustment method |
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| CN109521428B (en) | 2021-11-30 |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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